<div id="readability-page-1"><div>(TheNewswire)<ul><ul></ul></ul>Vancouver, BC – TheNewswire - April 21, 2026 – Vanguard Mining Corp.(&#34;Vanguard&#34; or the &#34;Company&#34;) (CSE: UUU | OTCID: UUUFF | Frankfurt: SL51) is pleased toprovide a corporate update highlighting its strategic transitiontoward uranium exploration and development, and in connection withthis repositioning, the Company is proposing to change its name to“Uranium One Mining Corp.” (the “Name Change”).The Name Change is intended to reflect the Company’sexpanded focus on its uranium portfolio, including the Yuty PrometeoProject located in Paraguay, the Nuclean Uranium Project in theAthabasca Basin, Saskatchewan, and the Quark Uranium Property, alsolocated in the Athabasca Basin, as well as potential futureacquisitions in the uranium sector.David C. Greenway, President and CEOof Vanguard Mining Corp., commented: “The proposed name change toUranium One Mining Corp. better reflects the Company’s strategicdirection and our commitment to building a focused uranium portfolioaligned with global energy trends. Global electricity demand isprojected to exceed 30 trillion kilowatt-hours annually by the early2030s, driven in large part by the rapid expansion of AI-driven datacentres, electrification of transportation, and increasing energydemand across emerging markets. AI infrastructure alone is expected torequire gigawatt-scale power capacity, placing unprecedented strain onexisting energy systems. In this environment, nuclear energy isincreasingly recognized as a critical solution for deliveringreliable, carbon-free baseload power on scale. We believe uranium willplay a central role in meeting these future energy needs, and ourrepositioning reflects our commitment to participating in thislong-term structural shift while creating sustainable value for ourshareholders.”Share ConsolidationIn conjunction with the proposed name change andstrategic repositioning, the Company intends to complete aconsolidation of its issued and outstanding common shares on a 3.5:1basis. The consolidation is expected to enhance the Company’scapital structure and better position it for future growthinitiatives.Further details regarding the effective date of thename change and share consolidation will be provided oncefinalized.Registered holders of physical share certificates willreceive a letter of transmittal by mail advisingthat the Name Change and Consolidation has beeneffected and will contain instructions on how toexchange share certificates evidencing pre-consolidated Common Sharesfor new share certificates representing the number ofpost-consolidated Common Shares to which they are entitled.No action is required for shares held bynon-registered holders (shareholders who hold their shares through anintermediary) and outstanding Direct Registration System (“DRS”).The Company believes the Name Change and strategic repositioning will enhance its visibility within the uranium sector and better align with investor interest in nuclear energy and critical minerals.Upon completion of the Name Change, the Company’s common shares will continue to trade under the existing symbol “UUU” and will be assigned new CUSIP and ISIN numbers.The Canadian Securities Exchange (the “CSE”) will publish a bulletin announcing the effective date of the Name Change in due course.Uranium Projects PortfolioQuark Uranium ProjectThe Quark Uranium Property consists of eight (8) mineral claims totaling approximately 28,746 hectares (approximately 71,030 acres) located in the Province of Saskatchewan, Canada, within the Athabasca Basin region. The property is situated in a well-established uranium-producing district in northern Saskatchewan that has historically accounted for a significant portion of global uranium production.Nuclean Uranium ProjectThe Nuclean Uranium Project consists of seven exploration-stage mineral claims totaling approximately 23,424.90 hectares located in northern Saskatchewan, Canada, within the Athabasca Basin, widely recognized as one of the world’s premier uranium districts.Yuty Prometeo ProjectThe Yuty Prometeo Project consists of the San Jose and Uno concessions, together covering approximately 90,000 hectares within the prospective Paraná Basin in southeastern Paraguay. The project is located adjacent to Uranium Energy Corp.’s Yuty Deposit. According to public disclosure by Uranium Energy Corp., the Yuty Deposit hosts an NI 43-101 compliant mineral resource of approximately 8.96 million pounds of U₃O₈. The Company has not independently verified this information.The Yuty Prometeo Project is located within a geological setting that is considered prospective for uranium mineralization based on regional geological characteristics and historical exploration data. Mineralization on adjacent or nearby properties is not necessarily indicative of mineralization on the Company’s properties.Qualified PersonThe scientific and technical information contained in this news release has been reviewed and approved by Lawrence Segerstrom, P.Geo., M.Sc., MBA, a consulting geologist who is a “Qualified Person” as such term is defined under National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Mr. Segerstrom is not at arm’s length to Vanguard and is therefore not independent for the purposes of NI 43-101.About Vanguard Mining Corp.Vanguard Mining Corp. is a Canadian mineral exploration company focused on the discovery and development of high-value strategic minerals. The Company is currently advancing uranium exploration projects in the United States and Paraguay, with a focus on identifying and developing assets critical to the global energy transition. Vanguard is committed to responsible exploration and value creation through the acquisition and advancement of highly prospective uranium properties.All Stakeholders are encouraged to follow the Company on its social media profiles on LinkedIn,X.com, Facebook andInstagram andsign up for updates at Vanguardminingcorp.comNeither the Canadian SecuritiesExchange nor its Regulation Services Provider (as that term is definedin the policies of the CSE) accepts responsibility for the adequacy oraccuracy of this release.On Behalf of the Board ofDirectors“David Greenway”David Greenway, CEOFor further information, pleasecontact:Vanguard Mining Corp.Brent RusinPhone: +1 672-533-0348E-Mail: brent@vanguardminingcorp.comWebsite: vanguardminingcorp.comU.S. Securities Law DisclaimerThe securities issuable pursuant tothe Proposed Transaction have not, nor will they be registered underthe United States Securities Act of 1933, as amended, and may not beoffered or sold within the United States or to, or for the account orbenefit of, U.S. persons in the absence of U.S. registration or anapplicable exemption from the U.S. registration requirements. Thisnews release shall not constitute an offer to sell or the solicitationof an offer to buy nor shall there be any sale of the securities inthe United States or in any other jurisdiction in which such offer,solicitation or sale would be unlawful.Disclaimer for Forward-Looking InformationThis news release contains certain forward-looking statements and forward-looking information (collectively, “Forward-Looking Statements”) within the meaning of applicable Canadian and U.S. securities laws. All statements, other than statements of historical fact, included herein are Forward-Looking Statements, including, without limitation, statements regarding: the proposed name change of the Company (the “Name Change”); the proposed consolidation of the Company’s issued and outstanding common shares (the “Consolidation”); the anticipated timing and completion of the Name Change and Consolidation; the Company’s strategic repositioning and focus on uranium exploration and development; the anticipated benefits of such initiatives; the completion of any proposed transactions; and the Company’s business objectives, exploration plans, and strategic direction.When used in this news release, words such as “anticipate”, “believe”, “estimate”, “expect”, “target”, “plan”, “forecast”, “may”, “will”, “schedule”, and similar expressions are intended to identify Forward-Looking Statements.Forward-Looking Statements in this news release include, without limitation: statements relating to the completion and timing of the Name Change and Consolidation; the receipt of all required regulatory, exchange, and third-party approvals and consents; the anticipated benefits of the Company’s strategic repositioning; the Company’s future exploration activities and development plans; and broader market and industry expectations, including those relating to uranium demand.Forward-Looking Statements are based on management’s current expectations, estimates, projections, beliefs, and assumptions as of the date of this news release and are subject to a number of known and unknown risks, uncertainties, and other factors that could cause actual results to differ materially from those expressed or implied by such Forward-Looking Statements. These risks and uncertainties include, but are not limited to: the risk that the Name Change or Consolidation may not be completed on the terms described herein or at all; the failure to obtain necessary approvals in a timely manner or at all; changes in market conditions; risks inherent in the mineral exploration and development industry; uncertainties relating to the availability of financing; fluctuations in commodity prices, including uranium prices; changes in applicable laws, regulations, or government policies; and general economic, market, and business conditions.Although the Company believes that the assumptions and expectations reflected in the Forward-Looking Statements are reasonable, undue reliance should not be placed on such statements. The Forward-Looking Statements contained herein are made as of the date of this news release and are expressly qualified in their entirety by this cautionary statement. The Company undertakes no obligation to update or revise any Forward-Looking Statements, except as required by applicable securities laws.Readers are cautioned that the foregoing list of risks and uncertainties is not exhaustive. Additional information regarding these and other risk factors is available in the Company’s public disclosure documents filed on SEDAR+ at www.sedarplus.ca###Copyright (c) 2026 TheNewswire - All rights reserved.</div></div>

URNM

Vanguard Mining Corp. plans to change its name to Uranium One Mining Corp. to reflect its strategic focus on uranium exploration and development. The company aims to enhance its visibility in the uranium sector and align with growing investor interest in nuclear energy. Alongside the name change, Vanguard will consolidate its shares on a 3.5:1 basis to improve its capital structure. The company is advancing several uranium projects in Canada and Paraguay, including the Quark and Nuclean Uranium Projects, and the Yuty Prometeo Project.

Vanguard Mining Announces Proposed Name Change to Uranium One Mining Corp. and Strategic Focus on Uranium